Investigation On Ambient Energy Harvesting Of Heat Using Thermoelectricity Effect

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Investigation On Ambient Energy Harvesting Of
Heat Using Thermoelectricity Effect
Prepared By Wen-yi, Er
Supervisor Dr Mark
Schulz
Introduction The demand for electricity in the
world is high. Without compromising of the
natural resources, one way of getting it free is
by renewable energy. Ambient heat is renewable,
natural and available everywhere.
Electricity
2AA NiMH Cells
Hardware design for the ambient heat harvester

• Methodology
• Ambient heat converted into electricity of 1.3
  Volts using thermoelectric modules
• Electricity converted were then input into a
  Maxim 856 Step-Up DC-DC Converter circuit to be
  boost up to 5 Volts output
• From DC-DC boost converter, 5 Volts were then
  pump into a Maxim 712 Batteries Charger circuit,
  to charge and store electricity in 2AA NiMH cells
  

Objective To investigates how ambient heat
energy can be harvested using thermoelectric
effect to convert it into electricity, and thus
storing it into 2AA NiMH rechargeable batteries.
Approach Thermoelectric modules were put into the
design, as its used for creating power from heat
differentials. The conversion of heat differences
directly into electricity, is based on the
principle of Seebecks Effect.
Temperature-Voltage Characteristics Of
Thermoelectric Module (No-Load)
Voltage-Current Characteristics Of Thermoelectric
Module (No-Load)